[13a-A35-1~10] 13.9 Optical properties and light-emitting devices

[13a-A35-3] Photoluminescence of ZnGa₂O₄:Eu³⁺ films affected by crystallinity and oxidization

〇Housei Akazawa¹, Shinojima Hiroyuki² (1.NTT DIC, 2.Kurume NCT)

Keywords:zinc oxide, europium 3+ ion, photoluminescence

While ZnGa₂O₄ is suitable as a host accepting Eu³⁺ ions at Ga³⁺ sites, the emissoin yield of ^Eu3+ ions vary depending on the process condition. Wd have clarified the primary factors affecting the photoluminescence intensity in terms of crystallinity and the degree of oxidization through investigating samples deposited with O₂ and H₂O gases.